| abstract |
A multi-layer substrate is disclosed comprising a top surface layer of pulp fibers, a bottom surface layer of pulp fibers, and a layer of molten thermoplastic material between the layers of pulp fibers, wherein the thermoplastic material comprises polyethylene or is heated at 100°F to 350°F Has a tan delta value of 0.2 to 0.4 in the °F temperature range. The multi-layer substrate may comprise a cleaning composition supported on the multi-layer substrate, wherein a fluid path through the molten thermoplastic material allows the cleaning composition to travel from the top surface layer to the bottom surface layer. The multilayer substrate may be free of chemical adhesives, wherein the adhesion between the top surface layer and the thermoplastic layer and the adhesion between the bottom surface layer and the thermoplastic layer are instead provided by the thermoplastic itself, the The thermoplastic material bonds to groups of fibers in the top and bottom surface layers of the pulp fibers that are in contact with the thermoplastic material as it melts. |